NRF51 JTAG problems
Posted: Sat Aug 12, 2017 2:49 pm
Hey Forum
Couple questions regarding NRF51 JTAG using the debug adapter kit (with the RST button jumper set to SWDIO)
1) I accidentally ripped a pads off the tiny little JTAG adapter board that solders on to the pads on the main CFlie board. I should be able to solder the ends of jumper wires between the four pins labled "NRF51" on the main JTAG board to the four pads on the side of the crazyflie and still use JTAG, right? I see that those pins are a 1:1 mapping, but its not clear to me which pin is which on the two boards.
2) Before I damaged the little adapter, I had been having some intermittent JTAG problems so I tried a "make factory_reset". It seemed to work somewhat but died in the middle of flashing. When I power up right now, the blue "m3" LED is pulsing rapidly (not even a full blink) and I'm not able to connect at all with JTAG. Any clues on what's going on?
Thanks
Sean
Couple questions regarding NRF51 JTAG using the debug adapter kit (with the RST button jumper set to SWDIO)
1) I accidentally ripped a pads off the tiny little JTAG adapter board that solders on to the pads on the main CFlie board. I should be able to solder the ends of jumper wires between the four pins labled "NRF51" on the main JTAG board to the four pads on the side of the crazyflie and still use JTAG, right? I see that those pins are a 1:1 mapping, but its not clear to me which pin is which on the two boards.
2) Before I damaged the little adapter, I had been having some intermittent JTAG problems so I tried a "make factory_reset". It seemed to work somewhat but died in the middle of flashing. When I power up right now, the blue "m3" LED is pulsing rapidly (not even a full blink) and I'm not able to connect at all with JTAG. Any clues on what's going on?
Thanks
Sean